Laser Drilling

Laser drilling creates a minuscule passageway into the heart of a diamond. This is a small tunnel that is used to reach a large inclusion in a diamond.

The manmade opening allows for further treatments, such as boiling out included crystals with acid. In other cases, an internal fracture, feather or knot, can be laser drilled to create a passageway to introduce glass-like substances that soften or minimize their appearance.

Laser drilling is the process of,

Drilling a hole with a hot, high-power laser beam from a point on the surface of a diamond to a dark inclusion trapped within the diamond.

The laser beam "drills hole", to the dark inclusion; this provides a passage to the inclusion from the surface, and deep boiling in acid or bleach will remove the dark and cause the inclusion to be less visible. The drill holes themselves appear as fine, straight tunnels from the surface of the diamond to an inclusion.

Laser drilled clarity enhanced diamonds have a microscopic channel made into the diamond in order to clean, remove or bleach white, defects such as bubbles and black carbon spots that can be visible to the naked eye.